diff options
Diffstat (limited to 'src/mame/drivers/carrera.cpp')
-rw-r--r-- | src/mame/drivers/carrera.cpp | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/src/mame/drivers/carrera.cpp b/src/mame/drivers/carrera.cpp new file mode 100644 index 00000000000..d567ecc67da --- /dev/null +++ b/src/mame/drivers/carrera.cpp @@ -0,0 +1,360 @@ +// license:BSD-3-Clause +// copyright-holders:David Haywood +/* + +This is a simple 'Pairs' game called +Carrera by BS Electronics + + + +PCB Layout +---------- + +|----------------------------------------------| +| 22.1184MHz Z80 | +| ROM.IC1 | +|_ BATTERY ROM.IC22 | + | | + _| 6116 ROM.IC2 | +| | +| | +|J AY-3-8910 ROM.IC3 | +|A DSW1(8) | +|M | +|M DSW2(8) ROM.IC4 | +|A | +| DSW3(8) | +| ROM.IC5 | +|_ PROM.IC39 DSW4(8) | + | 6116 | + _| | +| HD6845 6116 | +|----------------------------------------------| +Notes: + Z80 @ 3.6864MHz [22.1184/6] + AY-3-8910 @ 1.8432MHz [22.1184/12] + + +Emulation Notes: + Corrupt Tile on the first R in Carrera? (unlikely to be a bug, HW is very simple..) + There is also a 'Bomberman' title in the GFX roms, unused from what I can see. + +TODO: +- Are colors 100% correct? Needs a reference to be sure. +- There are reel gfxs on the roms (near the end), left-over or there's a way to enable it? + Update: if you trigger a normal irq 0 instead of a NMI the game will change into a proper 8 liner game without inputs. Investigate on it... + +*/ + +#define MASTER_CLOCK XTAL_22_1184MHz + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "sound/ay8910.h" +#include "video/mc6845.h" + + +class carrera_state : public driver_device +{ +public: + carrera_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_tileram(*this, "tileram"), + m_maincpu(*this, "maincpu"), + m_gfxdecode(*this, "gfxdecode"), + m_palette(*this, "palette") { } + + required_shared_ptr<UINT8> m_tileram; + DECLARE_READ8_MEMBER(unknown_r); + DECLARE_PALETTE_INIT(carrera); + UINT32 screen_update_carrera(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + required_device<cpu_device> m_maincpu; + required_device<gfxdecode_device> m_gfxdecode; + required_device<palette_device> m_palette; +}; + + +static ADDRESS_MAP_START( carrera_map, AS_PROGRAM, 8, carrera_state ) + AM_RANGE(0x0000, 0x4fff) AM_ROM + AM_RANGE(0xe000, 0xe7ff) AM_RAM + AM_RANGE(0xe800, 0xe800) AM_DEVWRITE("crtc", mc6845_device, address_w) + AM_RANGE(0xe801, 0xe801) AM_DEVWRITE("crtc", mc6845_device, register_w) + AM_RANGE(0xf000, 0xffff) AM_RAM AM_SHARE("tileram") +ADDRESS_MAP_END + +static ADDRESS_MAP_START( io_map, AS_IO, 8, carrera_state ) + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x00, 0x00) AM_READ_PORT("IN0") + AM_RANGE(0x01, 0x01) AM_READ_PORT("IN1") + AM_RANGE(0x02, 0x02) AM_READ_PORT("IN2") + AM_RANGE(0x03, 0x03) AM_READ_PORT("IN3") + AM_RANGE(0x04, 0x04) AM_READ_PORT("IN4") + AM_RANGE(0x05, 0x05) AM_READ_PORT("IN5") + AM_RANGE(0x06, 0x06) AM_WRITENOP // ? + AM_RANGE(0x08, 0x09) AM_DEVWRITE("aysnd", ay8910_device, address_data_w) +ADDRESS_MAP_END + +static INPUT_PORTS_START( carrera ) + PORT_START("IN0") /* Port 0 */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) + /* unused / unknown inputs, not dips */ + PORT_DIPNAME( 0x20, 0x20, "0" ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + + PORT_START("IN1") /* Port 1 */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) + /* unused / unknown inputs, not dips */ + PORT_DIPNAME( 0x04, 0x04, "1" ) + PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + + /* I suspect the 4 below are the 4xDSWs */ + PORT_START("IN2") /* Port 2 */ + PORT_DIPNAME( 0x01, 0x01, "2" ) + PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + + PORT_START("IN3") /* Port 3 */ + PORT_DIPNAME( 0x01, 0x01, "3" ) + PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + + PORT_START("IN4") /* Port 4 */ + PORT_DIPNAME( 0x01, 0x01, "4" ) + PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + + PORT_START("IN5") /* Port 5 */ + PORT_DIPNAME( 0x01, 0x01, "5" ) + PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x08, "Playing Graphics" ) + PORT_DIPSETTING( 0x08, "Bricks" ) + PORT_DIPSETTING( 0x00, "Fruits" ) + PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x80, "Debug?" ) // displays numbers over the game area + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) +INPUT_PORTS_END + +static const gfx_layout tiles8x8_layout = +{ + 8,8, + RGN_FRAC(1,5), + 5, + { RGN_FRAC(0,5), RGN_FRAC(1,5),RGN_FRAC(2,5),RGN_FRAC(3,5),RGN_FRAC(4,5) }, + { 0, 1, 2, 3, 4, 5, 6, 7 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, + 8*8 +}; + +static GFXDECODE_START( carrera ) + GFXDECODE_ENTRY( "gfx1", 0, tiles8x8_layout, 0, 1 ) +GFXDECODE_END + +UINT32 carrera_state::screen_update_carrera(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + int x,y; + int count = 0; + + for (y=0;y<32;y++) + { + for (x=0;x<64;x++) + { + int tile = m_tileram[count&0x7ff] | m_tileram[(count&0x7ff)+0x800]<<8; + + m_gfxdecode->gfx(0)->opaque(bitmap,cliprect,tile,0,0,0,x*8,y*8); + count++; + } + } + return 0; +} + +READ8_MEMBER(carrera_state::unknown_r) +{ + return machine().rand(); +} + +PALETTE_INIT_MEMBER(carrera_state, carrera) +{ + const UINT8 *color_prom = memregion("proms")->base(); + int br_bit0, br_bit1, bit0, bit1, r, g, b; + int i; + + for (i = 0; i < 0x20; ++i) + { + br_bit0 = (color_prom[0] >> 6) & 0x01; + br_bit1 = (color_prom[0] >> 7) & 0x01; + + bit0 = (color_prom[0] >> 0) & 0x01; + bit1 = (color_prom[0] >> 3) & 0x01; + b = 0x0e * br_bit0 + 0x1f * br_bit1 + 0x43 * bit0 + 0x8f * bit1; + bit0 = (color_prom[0] >> 1) & 0x01; + bit1 = (color_prom[0] >> 4) & 0x01; + g = 0x0e * br_bit0 + 0x1f * br_bit1 + 0x43 * bit0 + 0x8f * bit1; + bit0 = (color_prom[0] >> 2) & 0x01; + bit1 = (color_prom[0] >> 5) & 0x01; + r = 0x0e * br_bit0 + 0x1f * br_bit1 + 0x43 * bit0 + 0x8f * bit1; + + palette.set_pen_color(i, rgb_t(r, g, b)); + color_prom++; + } +} + + +static MACHINE_CONFIG_START( carrera, carrera_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", Z80, MASTER_CLOCK / 6) + MCFG_CPU_PROGRAM_MAP(carrera_map) + MCFG_CPU_IO_MAP(io_map) + MCFG_CPU_VBLANK_INT_DRIVER("screen", carrera_state, nmi_line_pulse) + + /* video hardware */ + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_REFRESH_RATE(60) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) + MCFG_SCREEN_SIZE(512, 256) + MCFG_SCREEN_VISIBLE_AREA(0, 512-1, 0, 256-1) + MCFG_SCREEN_UPDATE_DRIVER(carrera_state, screen_update_carrera) + MCFG_SCREEN_PALETTE("palette") + + MCFG_MC6845_ADD("crtc", MC6845, "screen", MASTER_CLOCK / 16) + MCFG_MC6845_SHOW_BORDER_AREA(false) + MCFG_MC6845_CHAR_WIDTH(8) + + MCFG_GFXDECODE_ADD("gfxdecode", "palette", carrera) + MCFG_PALETTE_ADD("palette", 32) + MCFG_PALETTE_INIT_OWNER(carrera_state, carrera) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + + MCFG_SOUND_ADD("aysnd", AY8910, MASTER_CLOCK/12) + /* these are set as input, but I have no idea which input port it uses is for the AY */ + MCFG_AY8910_PORT_A_READ_CB(READ8(carrera_state, unknown_r)) + MCFG_AY8910_PORT_B_READ_CB(READ8(carrera_state, unknown_r)) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) +MACHINE_CONFIG_END + + +ROM_START( carrera ) + ROM_REGION( 0x10000, "maincpu", 0 ) + ROM_LOAD( "27512.ic22", 0x00000, 0x10000, CRC(2385b9c8) SHA1(12d4397779e074096fbb23b114985f104366b79c) ) + + ROM_REGION( 0x50000, "gfx1", 0 ) + ROM_LOAD( "27512.ic1", 0x00000, 0x10000, CRC(a16e914e) SHA1(09f2271f193a7bffd62ef6e428ecbf9aa1154860) ) + ROM_LOAD( "27512.ic2", 0x10000, 0x10000, CRC(147036a5) SHA1(34b4818fe61c5b13220b0a2001987b68b655b2cb) ) + ROM_LOAD( "27512.ic3", 0x20000, 0x10000, CRC(920eee0e) SHA1(85e6d5292b751c57c64d17858bd00292356599e3) ) + ROM_LOAD( "27512.ic4", 0x30000, 0x10000, CRC(97433f36) SHA1(39f3c6b76ad540693682832aba6e4fc400ca3753) ) + ROM_LOAD( "27512.ic5", 0x40000, 0x10000, CRC(ffa75920) SHA1(aa5619f5aabcdfa250bb24bcad101a8c512a1776) ) + + ROM_REGION( 0x20, "proms", 0 ) + ROM_LOAD( "82s123.ic39", 0x00, 0x20, CRC(af16359f) SHA1(1ff5c9d7807e52be09c0ded56fb68a47e41b3fcf) ) +ROM_END + + +GAME( 19??, carrera, 0, carrera, carrera, driver_device,0, ROT0, "BS Electronics", "Carrera (Version 6.7)", 0 ) |